incubator-jena-dev mailing list archives

[jira] [Commented] (JENA-234) In TDB, namespace data out of sync when dataset not closed properly

Date

Thu, 12 Apr 2012 16:13:21 GMT

[ https://issues.apache.org/jira/browse/JENA-234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13252529#comment-13252529
]
Andy Seaborne commented on JENA-234:
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Could you provide a complete, minimal example please.
The email you refer to is out-of-date. Producing it with current TDB and it works Ok.
See attached.
> In TDB, namespace data out of sync when dataset not closed properly
> -------------------------------------------------------------------
>
> Key: JENA-234
> URL: https://issues.apache.org/jira/browse/JENA-234
> Project: Apache Jena
> Issue Type: Bug
> Components: TDB
> Affects Versions: TDB 0.9.0
> Environment: Windows 7. I think this can be repro'ed in any environment
> Reporter: Nathanael Thompson
>
> When a TDB model is not closed properly. the NodeToId table get's out of sync with the
IdToNode table. This is because writeBuffer in ObjectFileStorage doesn't get written, but
the data in the NodeToId table does get written. This causes the error mentioned in the following
email thread:
> http://mail-archives.apache.org/mod_mbox/incubator-jena-dev/201201.mbox/%3C4F1EE540.5050307@apache.org%3E
> Normally I'd say this isn't a bug because the user should close their models correctly.
But it seems like this should be fixed, because this mistake breaks TDB for all future uses,
and possibly forces the user to recreate the whole db. I'd be fine with just not writing
the buffered data to both tables, as long as they're in sync.
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